1. Find "Set up SIM card lock"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3c58a191-ef36-44df-ac40-5e762f4e7176.png?width=378&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-33e80bb5-24d6-4987-b372-9ae8f266ee47.png?width=378&height=456)
Press Biometrics and security.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-406da43a-d58b-49a1-857f-7f3a1e2a0856.png?width=378&height=456)
Press Other security settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-12c0bce9-443c-4d58-8517-e7d3ad49b1d6.png?width=378&height=456)
Press Set up SIM card lock.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d6dab410-c35b-40b1-8440-3822ea433b82.png?width=378&height=456)
2. Turn use of PIN on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6f6a378d-e769-4390-b4bc-915d86812ae0.png?width=378&height=456)
Press the indicator next to "Lock SIM card" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6f6a378d-e769-4390-b4bc-915d86812ae0.png?width=378&height=456)
Key in your PIN and press OK.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting customer services. Please note: If you key in the wrong PUK ten times in a row, your SIM will be blocked permanently. In this case, you need a new SIM from Vodafone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-547ffbc7-2112-48ad-a932-897347a8d057.png?width=378&height=456)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6f6a378d-e769-4390-b4bc-915d86812ae0.png?width=378&height=456)